The UHF 456 456 450-470Mhz Callbox XT Outdoor Intercom with Gate Relay works with other
UHF radios in the 456 450-470Mhz frequency range and it provides long
range, 2-way voice communication
from the fixed location of the Callbox to any of your
other radios. It
has a range of up to one mile or more with an optional external
antenna.

There is
no need for extensive wiring, trenching, remodeling, or
installing dedicated phone
lines with expensive monthly fees since the Callbox is completely wireless.

For simple installation, the Callbox is
designed to operate on 6 D-cell batteries (alkaline or Ni-Cad
rechargeable). An optional external power supply is also
available.

The Callbox has two modes of power consumption.
In Automatic Turn-Off the unit turns itself off after a programmed amount
of inactivity (up to 4 minutes). It can only be turned on again by pressing its
Call button on the Callbox. In this mode it cannot receive calls from
other intercom or handheld radio units. It can only make calls and then other
units can respond.

In Normal mode, the unit does not turn itself
off and the Callbox can not only make calls, but receive
them as well. This mode consumes the largest amount of power and
should only be considered if an external source of power is available. If an external source of power is used, the internal batteries
can be installed as a back-up against loss of

If you use the CallBox Outdoor Intercom
with Gate Relay along with a radio that can send a 2-Tone
encode signal then the Callbox can be used to remotely control gates or magnetic door
locks. The
Callbox has a single 1-Amp switch output that can be activated
when the Callbox receives a unique 2-Tone encode signal that the
radio sends.

The Callbox with Gate Relay can also operate as a motion, gate
entry, tamper or vehicle detection device. It will send a
tone alert when optional switch/sensor status
changes. The Callbox will send a warning tone when a change in
the Sensor Input is detected. The Sensor Input will respond to
an OPEN or CLOSED switch.

The Callbox is housed in a fiberglass
enclosure with a stainless steel faceplate that includes
tamper-resistant fasteners and a concealed antenna making it
perfect to withstand harsh elements.

The Federal Communications Commission (FCC)
requires the owners of radios operating on these frequencies to
obtain a station license before using them.

If you are using this system with your existing
UHF two-way radios, make sure you enter in the Notes field of
the order the frequencies that
you want the Callbox to use so we can program it for you.
Include any privacy codes and the 2-Tone encode signal you are
using. You must also include the
Business Band Radio
Programming
option in your order to have us program the
Callbox, or you can program it yourself using the enclosed user
guide.